Chondrosarcoma Cells Change to an Epithelial-Like State
Author Information
Author(s): Matthew P. Fitzgerald, Francoise Gourronc, Melissa L. T. Teoh, Matthew J. Provenzano, Adam J. Case, James A. Martin, Frederick E. Domann
Primary Institution: University of Iowa
Hypothesis
Are chondrosarcoma cells undergoing a mesenchymal to epithelial transition (MET) during their progression?
Conclusion
Chondrosarcoma cells acquire epithelial characteristics through an epigenetic switch that involves the loss of DNA methylation.
Supporting Evidence
- Chondrosarcoma cells showed increased expression of epithelial markers E-cadherin, desmocollin 3, maspin, and 14-3-3σ.
- Loss of DNA methylation at the maspin and 14-3-3σ loci was associated with their increased expression.
- The transcription factor snail was downregulated in chondrosarcoma cells, suggesting a role in maintaining epithelial characteristics.
Takeaway
Chondrosarcoma cells can change to look more like epithelial cells, which might help them grow and spread better.
Methodology
The study involved examining gene expression and DNA methylation in chondrosarcoma and normal chondrocyte cells, using techniques like real-time RT-PCR and Western blotting.
Limitations
The study primarily focuses on in vitro models, which may not fully represent in vivo conditions.
Digital Object Identifier (DOI)
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